Gnathostomiasis is an endemic disease in Asian countries caused by the ingestion of larval stage of Gnathostoma sp roundworms that may be acquired by eating raw fresh-water fish. It can reach many organs and the skin is one of them, characterized by creeping eruptions and/or migrating erythema. Since 1970 the number of patients affected seems to be increasing in Central and South America countries like Mexico and Peru. This is the first notification and publication of gnathostomiasis in Brazil, and it serves as an alert to the possibility of the emergence of this disease in non-endemic areas. We report a case of a man who traveled to Peru and developed cutaneous features accordant with gnathostomiasis.